SERVICE MANUAL YBA200

SERVICE MANUAL
YBA200
TYPE: YS1029
WEB ACCESS: http://www.yorkville.com
WORLD HEADQUARTERS
CANADA
U.S.A.
Yorkville Sound
Yorkville Sound Inc.
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
Voice: (905) 837-8481
Fax: (905) 837-8746
Voice: (716) 297-2920
Fax: (716) 297-3689
Bassmaster
YBA200
ALL
TUBE
Quality and Innovation Since 1963
Printed in Canada
Manual-Service-YBA200-1v60.pdf
IMPORTANT SAFETY INSTRUCTIONS
INSTRUCTIONS RELATIVES AU RISQUE
DE FEU, CHOC ÉLECTRIQUE, OU
BLESSURES AUX PERSONNES
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER (OR BACK).
AVIS:
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,
N’ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)
NO USER SERVICEABLE PARTS INSIDE.
NE CONTIENT AUCUNE PIECE
REPARABLE PAR L’UTILISATEUR.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
CONSULTEZ UN TECHNICIEN QUALIFIE
POUR L’ENTRETIENT
Read Instructions
Veuillez Lire le Manuel
Packaging
Emballage
Warning
Attention:
The Owner’s Manualshould be read and understood
before operation of your unit. Please, save these instructions for future reference.
Keep the box and packaging materials, in case the unit
needs to be returned for service.
Conservez la boite au cas ou l’appareil devait être
retourner pour réparation.
When using electric products, basic precautions should
always be followed, including the following:
Lors de l’utilisation de produits électrique, assurez-vous
d’adhérer à des précautions de bases incluant celle qui
suivent:
Power Sources
Your unit should be connected to a power source only of the voltage
specified in the owners manual or as marked on the unit. This unit has
a polarized plug. Do not use with an extension cord or receptacle
unless the plug can be fully inserted. Precautions should be taken so
that the grounding scheme on the unit is not defeated.
Hazards
Do not place this product on an unstable cart, stand, tripod, bracket or
table. The product may fall, causing serious personal injury and serious
damage to the product. Use only with cart, stand, tripod, bracket, or
table recommended by the manufacturer or sold with the product.
Follow the manufacturer’s instructions when installing the product and
use mounting accessories recommended by the manufacturer.
The apparatus should not be exposed to dripping or splashing water;
no objects filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the
external wiring connected to these terminals require installation by an
instructed person or the use of ready made leads or cords.
The AC supply cord should be routed so that it is unlikely that it will be
damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT.
Service
The unit should be serviced only by qualified service personnel.
Alimentation
L’appareil ne doit être branché qu’à une source d’alimentation
correspondant au voltage spécifié dans le manuel ou tel qu’indiqué sur
l’appareil. Cet appareil est équipé d’une prise d’alimentation polarisée.
Ne pas utiliser cet appareil avec un cordon de raccordement à moins
qu’il soit possible d’insérer complètement les trois lames. Des
précautions doivent êtres prises afin d’eviter que le système de mise à
la terre de l’appareil ne soit désengagé.
Risque
Ne pas placer cet appareil sur un chariot, un support, un trépied ou une
table instables. L’appareil pourrait tomber et blesser quelqu’un ou subir
des dommages importants. Utiliser seulement un chariot, un support,
un trépied ou une table recommandés par le fabricant ou vendus avec
le produit. Suivre les instructions du fabricant pour installer l’appareil et
utiliser les accessoires recommandés par le fabricant.
Il convient de ne pas placer sur l’appareil de sources de flammes
nues, telles que des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des
éclaboussures et qu’aucun objet rempli de liquide tel que des vases
ne doit être placé sur l’appareil.
No naked flame sources, such as lighted candles, should be
placed on the apparatus.
Power Cord
Il contient des informations qui devraient êtres comprises
avant l’opération de votre appareil. Conservez S.V.P. ces
instructions pour consultations ultérieures.
Les dispositifs marqués d’une symbole “d’éclair” sont des parties
dangereuses au toucher et que les câblages extérieurs connectés à
ces dispositifs de connection extérieure doivent être effectivés par un
opérateur formé ou en utilisant des cordons déjà préparés.
Cordon d’Alimentation
Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS
L’APPAREIL si le cordon d’alimentation est endommagé.
Service
Consultez un technicien qualifié pour l’entretien de votre appareil.
safety-4v2.eps Aug 26/05
YBA200
YS No.
6397
5906
6398
6399
6888
6438
6440
6426
6475
6871
6872
5101
5104
6882
5400
5203
5197
5816
5206
5208
5209
6451
5272
5204
5834
5205
5840
6435
5222
5224
5228
5314
5865
5229
5231
5882
5258
5629
5945
5959
5260
5958
5879
5619
5957
5618
4423
4424
4425
713
8521
8522
8570
3467
3478
3490
3601
3682
3498
3523
3921
6956
3923
3451
2486
2463
3856
8542
8889
3438
3810
3827
8430
8633
8649
3428
8264
3674
8701
8800
8890
8797
3796
3850
4004
4597
4599
Description
JEWELED PILOT LAMP AMBER REG V1
RED 3MM LED 1V9 20MA .4SPCER T&R
RED 5MM LED 1V5 20MA HIGH EFF
YEL 5MM LED 1V5 20MA HIGH EFF
HER508 1000V 3A0 DIODE ULTRAFAST
1N4007 400V 1A0 DIODE
T&R
1N750ARL 4V7 0W5 ZENER 5% T&R
1N5254B 27V0 0W5 ZENER 5% T&R
1N5262B 51V0 0W5 ZENER 5% T&R
MC7915CT TO220 N 15V0 REG V2
MC7815CT TO220 P 15V0 REG V1
BC550C
TO92 NPN TRAN T&R TB
MPSA56
TO92 PNP TRAN T&R TA
TL072CP IC FET DUAL OP AMP
_10P 100V 10%CAP T&R BEAD
NPO
_47P 100V 2%CAP T&R RAD CER.2"NPO
220P 100V 2%CAP T&R RAD CER.2"NPO
680P 100V 5%CAP T&R RAD CER.2"NPO
__1N 400V 5%CAP T&R RAD .2"FLM
__2N2 400V 5%CAP T&R RAD .2"FLM
__4N7 250V 5%CAP T&R RAD .2"FLM
__4N7 250V 20%CAP BLK 'Y' 10MM AC
__6N8 100V 5%CAP T&R RAD .2"FLM
_10N 100V 10%CAP T&R RAD .2"FLM
_10N 250V 20%CAP BLK RAD POLY FLM
_15N 100V 10%CAP T&R RAD .2"FLM
_22N 400V 10%CAP BLK RAD POLY FLM
_22N 275V 20%CAP BLK 'X2' 15MM AC
_33N 100V 10%CAP T&R RAD .2"FLM
_47N 100V 10%CAP T&R RAD .2"FLM
100N 100V 5%CAP T&R RAD .2"FLM
100N 50V 10%CAP T&R BEAD
X7R
100N 250V 10%CAP BLK RAD POLY FLM
150N 63V 10%CAP T&R RAD .2"FLM
220N 63V 10%CAP T&R RAD .2"FLM
220N 250V 10%CAP BLK RAD POLY FLM
__4U7 63V 20%CAP T&R 8X7MM .2"EL
_10U 160V 20%CAP BLK 10X13MM EL
_10U 63V 20%CAP T&R RAD .2"EL
_10U 450V 20%CAP BLK
EL
_22U 50V 20%CAP T&R RAD .2"EL
_22U 350V 20%CAP BLK 13X25 EL
100U 16V 20%CAP T&R 8X7MM .2"EL
330U 100V 20%CAP BLK 12X25MM EL
470U 350V 20%CAP BLK 30X50 EL
470U 25V 20%CAP BLK 10X15MM EL
_20K 15AAUDIO 9MM
P32
100K 1B LIN 9MM
P32
500K 15AAUDIO 9MM
P32
25 X 20 X 50 2 MIL PLASTIC BAG
RUBBER BUMPER WITH WASHER VERYSMALL
RUBBER BUMPER WITH WASHER -SMALLCORNER, 2 LEGS NOTCED LIP BLACK
CLIP 205X032 14-16AWG DISC/INSUL
CLIP 205/187X032 18-22AWG DISCO/INS
CLIP 250X032 14-16AWG DISCO/INSL
RING TERMINAL 16AWG WIRE & #8 SCREW
250 MALE PCB TAB REEL
1/4" JCK PCB MT HORZ
1/4" JCK PCB MT HORZ GOLD T__
1/4" JCK PCB MT VERT STER RT SWT
SPKON 4C PCB MT HORZ
GRY #4
XLR MALE PCB MT HORZ MTHOLE-V SNAP
EYELET SMALL 0.089 OD PLATED
1.5 AMP SLO-BLO T&R
FUSE
T6,3A
5X20MM FUSE
FAN 80MM X 80MM 39CFM 12VDC 200MA
HANDLE,RECESSED,PULL,BLACK PLASTIC
RUBBER GROMMET #2183-034-BLK
IEC PWR SOC W/.205TAB &FUSE 10A250V
4" NYLON CABLE TIE
SQUARE BUMPER BUTTON BLACK
YCV40 CHICKEN-BEAK KNOB
ROUND PUSH BUTTON 1/4" BLACK
BUTTON KNOB FLAT BLACK
8' 3/18 SJT AC LINE CORD REMOVABLE
YBA200 LOGO EMBOSSED ALUMINUM
9 CIR CABLE HOLDER .098
4-40 KEPS NUT ZINC
6-32 KEPS NUT ZINC
1/4-20 CAGE NUT C79-88142027
5/16-18 KEPS NUT JS500
ELASTOMER PAD TSIL 1.0X0.8
TO-220 PLASTIC TRANSISTOR INSULATOR
_9 CIR WAFER W/LCK VT 0.1"
22AWG STRAN TC WIR
JMP
22AWG SOLID SC WIR
T&R JMP
Qty.
1
1
1
1
4
9
1
1
8
1
1
3
4
1
1
2
1
1
2
1
1
1
2
2
4
1
5
1
1
1
9
1
1
2
2
3
1
1
2
1
8
4
1
1
2
5
1
2
5
1
8
4
8
2
1
10
2
21
3
1
3
1
1
16
2
1
1
2
3
1
5
1
8
3
3
1
1
1
2
8
4
2
2
2
1
22
57
YS No.
2007
2008
4612
4704
2023
2024
4713
4869
4822
4823
4854
4824
4791
4738
4808
4847
4826
4827
4663
4863
4829
5031
4860
4831
4832
4834
4848
4836
4837
4838
4776
4851
4790
4886
4841
6145
4843
4844
4845
4751
3535
8741
8842
8832
8807
8801
8829
8755
8809
8753
8756
8770
8736
3865
8482
8488
8818
8817
3424
3436
3522
3554
3732
3984
4021
Description
1/4W 1R 5%FLAME PROOF T&R RES
1.0W 10R 5%FLAME PROOF T&R RES
1/2W 18R 5%
T&R RES
5.0W 33R 5%
BLK RES
1/8W 220R0 1%FLAME PROOF T&R RES
1/8W 249R 2%FLAME PROOF T&R RES
1.0W 470R 5%
T&R RES
1/4W 750R 5%
T&R RES
1/4W 820R 5%
T&R RES
1/4W 1K 5%
T&R RES
1/4W 1K2 5%
T&R RES
1/4W 1K5 5%
T&R RES
1/4W 1K54 1%
T&T RES
5.0W 1K8 5%
BLK RES
1/4W 2K 5%
T&R RES
1/4W 2K2 5%
T&R RES
1/4W 3K3 5%
T&R RES
1/4W 4K7 5%
T&R RES
1/2W 8K2 5%
T&R RES
1/4W 8K2 5%
T&R RES
1/4W 10K 5%
T&R RES
1.0W 10K0 5%
T&R
1/4W 11K 5%
T&R RES
1/4W 18K 5%
T&R RES
1/4W 22K 5%
T&R RES
1/4W 47K 5%
T&R RES
1/4W 62K 5%
T&R RES
1/4W 68K 5%
T&R RES
1/4W 82K 5%
T&R RES
1/4W 100K 5%
T&R RES
1/4W 113K 1%
T&R RES
1/4W 120K 5%
T&R RES
2.0W 150K 5%10MM BODY T&R RES
1/4W 200K 5%
T&R RES
1/4W 220K 5%
T&R RES
1/4W 249K 1%MINI
T&R RES
1/4W 470K 5%
T&R RES
1/4W 1M 5%
T&R RES
1/4W 2M2 5%
T&R RES
1/4W 22M 5%
T&R RES
10" 9C-26AWG RIB 1 W/LCK HDR 098
4-40 X 1/2 PAN PH MS JS500
#4 X 5/16 PAN QUAD TYPE A JS500 BLK
6-32 X 1/4 PAN PH TAPTITE JS500
6-32 X 5/16 PAN PH MS JS500
6-32 X 3/8 PAN PH TAPTITE JS500
6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA
#6 X 5/8 PAN PH TYPE A JS500 BLACK
10-32 X 1/4 PAN PH TAPTITE JS500
#10 X 1/2 PAN PH TYPE A JS500 BLACK
#10 X 3/4 PAN PH TYPE A BLACK OXIDE
1/4-20 X 1 5/16 TRUSS PH MS JS500
5/16-18X2-3/4 GRD 5 HEX BOLT JS500
1/2 PLASTIC HEX SPACER #6
3/8 1D FLAT WASHER
3/8 INT TOOTH LOCKWASHE ZINC
3/4 OD X 3/8 ID X .080 THICK WASHER
#10 FLAT WASHER FOR 3/16" BOLT
DPDT SLID SW PCMT H GOLD CONTACTS
DPDT PUSH SW PCMT H BREAK B4 MAKE
DPDT MINI PC VERT SNP ALT
DPDT TOGGLE SW QUICK .250" CARLING
9 PIN PC MOUNT TUBE SOCKET BE
8 PIN PC MOUNT TUBE SOCKET BE
SPRING RETAINER FOR 6550
12AU7 DUAL TRIODE PREAMP TUBE
12AX7 DUAL TRIODE PREAMP TUBE
6550 TETRODE OUTPUT POWER TUBE
YBA1 120VAC 60HZ
T'RD
YBA1 OUTPUT
XFMR
Qty.
1
4
3
1
2
2
2
1
4
1
1
1
1
4
1
1
1
4
3
3
9
4
2
4
1
7
1
1
1
7
6
2
6
2
2
4
6
6
2
1
1
2
2
40
6
2
14
12
4
12
16
4
2
19
3
3
4
4
1
3
3
2
3
4
4
1
2
4
1
1
#
Part#
Description
Labeled Components
1
2
3
5
4
6
1
8264
2
Z536
YBA200/YCV LOGO EMBOSSED ALUMINUM
YBA200 FRONT GRILL*‡
3
3438
IEC PWR SOC W/.250TAB &FUSE 10A
4
Z540
YBA200 BACK GRILL*‡
5
3450
1/4" JCK PCB MT HORZ GOLD
6
3424
DPDT SLID SW PCMT H GOLD CONTACTS
7
8522
RUBBER BUMPER WITH WASHER -SMALL
8
8570
CORNER, 2 LEGS NOTCHED LIP BLACK
9
8770
1/4-20X1 5/16 TRUSS PH MS JS5
10
Z537
YBA200 CABINET VENT PLATE
11
3498
1/4" JCK PCB MT HORZ
12
8633
ROUND PUSH BUTTON 1/4" BLACK
13
8430
YCV40 CHICKEN BEAK KNOB
14
8649
BUTTON KNOB FLAT BLACK
15
6397
JEWELED PILOT LAMP AMBER REG
16
3554
DPDT TOGGLE SW QUICK .250"
17
8521
RUBBER BUMPER WITH WASHER -VERYSMALL
18
8452
HANDLE, RESESSED, PULL, BLACK PLASTIC
19
3428
8' 3/18 SJT AC LINE CORD REMOVABLE
20
12AX7
12AX7 DUAL TRIODE PREAMP TUBE
21
12AU7
22
6550
6550 TETRODE OUTPUT POWER TUBE
23
4021
SPRING RETAINER FOR 6550
12AU7 DUAL TRIODE PREAMP TUBE
20/21/22
17
not shown
19
7
18
8
8
9
9
10
16
11
13
5
12
14
15
*NOTE: Replacement grills are 'Special-Order' and are only available while the model is in production.
‡ Grilles & Support replacements are for CURRENT models only.
Parts-Serv-yba200-1v0.xls
ftp.yorkville.com
MODEL TYPE: YS1029
Block Diagram for YBA200
DESIGNED AND MANUFACTURED BY YORKVILLE SOUND
Channel Inputs
Speaker Outputs
Scoop
On / Off
Bright
Mono 1/4"
EQ
Range
Mono 1/4"
Resonance
8 ohm
Low / Mid / High
0dB
Preamp
V1:A
Gain
Preamp
V2:A
Preamp
V1:B
Mono 1/4"
-6dB
Volume
Preamp
V2:B
+
4 ohm
Power
Amp
Mono 1/4"
Scoop
Mute
SPLITTER
PRE-EQ
POST-EQ
PREAMP
12AU7
12AX7
12AX7
V3
V2
V1
+
Bal Line Out
Tuner Output
Pre-Amp Out
Amp In
Ground Lift
POWER
6550
-20dB Pad
-
V7
6550
V4
6550
V5
6550
V6
DISCONNECT POWER WHEN
REPLACING TUBES
DÉBRANCHÉ L’APPAREIL AVANT
DE REMPLACER LES LAMPES
A
B
C
D
E
F
G
H
I
J
K
L
N
O
P
Q
PREAMP OUT
1
150N
C69
63V
R109
1M
1/4W
R112
68K
1/4W
S1:A
4U7
C1
63V
R6
750R
R15
220K
1/4W
R50
470K
M
C13
22N
P5:A
TREBLE
S1:B
R51
22M
R17
120K
T
R
S
J2
2
1/4W
113K
R22
500K
15A
4425
M
C9
220N
-
63V
R13
1K5
SCOOP
-
+267V
C10
220N
AMP IN
C14
10N
P4:A
BASS
250V
R24
1/4W
100K
PREAMP OUT
R9
1/4W
100K
-
400V
R10
120K
15N
C6
100V
220N
C4
63V
RANGE
C11
33N
250V
C67
4N7
20K
15A
4423
100V P3:A
MID
R14
113K
Val
V2:B
250V
R23
470K
M
R19
1M
R20
1K
R21
47K
Gold
.
.
T
R
S
100V
J3
3
500K
15A
4425
M
10N
C71
100V
150N
C54
63V
C15
100N
P7:A
VOLUME
1/4W
R8
1/4W
82K
P6:A
1/4W
R114
10K
100K
1B
4424
R18
1/4W
4K7
6N8
C34
100V
R11
1/4W
62K
400V
Val
V1:B
R12
47K
1/4W
C7
1N
250V
100K
OUT1B
4424
M
1
400V
1/4W
PreAmp
SCOOP
1/4W
1/4W
1/4W
R2
1K54
GND
GND LIFT
R98
470K
3436
S3:B
+15V
1/4W
RING
R27
4K7
R25
2M2
S2:A
S8:A
S2:B
U1:C
S4:B
TL072CP
R28
1/4W
11K
U1:A
R33
1/4W
470K
18AWG
YEL W31
TUNER MUTE
16V
R91
1/4W
22K
100U
C65
-15V
U1:B
R36
1/8W
249R
DI OUT
C20
22U
J5
50V
FLMP
3923
-15V
S5:A
S8:B
TL072CP
V+
R31
1/4W
10K
3436
-20dB PAD
S3:A
8
100V
R32
1/4W
100K
V-
R113
100K
.
R26
47K
C18
47P
R30
1/4W
470K
R35
1/4W
10K
+15V
R37
1/8W
249R
R34
1/4W
100K
C19
47P
C21
22U
50V
FLMP
R38
100K
1/4W
TO92
3436
S5:B
S4:A
1/4W
C17
22U
R117
1/4W
2M2
1/4W
Q3
5101
50V
1/4W
J4
1/4W
BC550C
R29
1/4W
11K
PRE/POST
4
1/4W
FUNCTION
4
R110
2K
MUTE
LD3
RED
5906
100N
C16
100V
+15V
R97
1/4W
10K
C5
100N
50V
C64
100N
P2:A
SCOOP
GND
5
GAIN
1/4W
1/4W
RING
16AWG
GRN W30
R3
1M
10P
C2
100V
R4
1/4W
47K
4
P1:A
100V
3
M
1/4W
M
Val
V1:A
J1
C70
100N
R5
1/4W
47K
R7
113K
1/4W
250V
PreAmp
C55
400V
1/4W
C3
10N
FUNCTION
1N
1/4W
1/4W
RING
R40
1/4W
47K
100V
C68
680P
500K
15A
4425
R1
113K
Val
V2:A
6N8
C35
100V
500K
15A
4425
1/4W
R111
1/4W
1M
PRE2
PREAMP
100V
18AWG
BLK W26
C12
2N2
+267V
250V
1/4W
+267V
C66
10N
+267V
1/4W
J6
C8
10N
R16
1/4W
220K
1/4W
FUNCTION
2
M
5
R39
100K
16AWG
GND
GRN W30.
100V
SPKR+
GND
6
6
C44
22N
10
11
A
22-MAR-2004
30-MAR-2004
.
19-APR-2004
4 May, 2004
25-MAY-2004
.
07-JUN-2004
.
10-JUN-2004
.
.
.
20-OCT-2004
27-OCT-2005
23-JUN-2006
.
D
B
C
D
E
F
R89
1M
R86
1/4W
1K2
C50
100N
V3:B
Val
220P
C48
Splitter100V
R82
200K
R83
200K
R81
249K
GND
+15V
C B E
TO-92
79XX
78XX
1/4W
R71
1/4W
8K2
1/4W
R107
10K
TO92
5104
Q17
R72
1/4W
8K2
Q18
5104
TO92
22U
C43
50V
1N750ARL
D18
4V7
0W5
R66
1.0W
10R
GND
FLMP
R108
10K
.
R79
249K
3682
BLUE
C39
22U
TP5
GND
C46
22N
R90
4K7
18AWG
. W32
R77
820R
3682
RED
Function
1_
2+
3682
GRN
4ohm
W16
6
1
R80
249K
OUTPUT
3682
BRN
PLT
W14
3682
BLK
C47
22N
T
R
S
-
-
-
0V
W17
9
R76
820R
SPKRT
R
S
-
-
-
400V
.
GND
J8
18AWG
BLK W32.
400V
-DRIVE
8
5
TP1
Val
V7:A
+560V
2_
8ohm
W15
4
B+
W12
2
FLMP
R62
5.0W
1K8
Val
V6:A
Function
3682
YEL
CH1333M
100V
R61
5.0W
1K8
SPEAKON 4C H
6956
1+
3
R67
1/4W
18K
R68
1/4W
18K
.
C40
50V 22U
7
OUTPUT
PLT
W13
-BIAS
PWR1
50V
MPSA56
MPSA56
.
R106
10K R64
1.0W
10R
3424
J7_:A
R73
4K7
.
4/8 Ohm
SPKR+
-78V
FLMP
S7:A
XF_PCT
TP2
R60
5.0W
1K8
R65
1.0W
10R
.
TP4
EBC
TO-92
S7:B
18AWG
YEL W31.
V4:A
1/4W
1/4W
MPSA56
R70
MPSA56
1/4W
18K
Q16
C41
5104
22U 50V
TO92
PRE1
100V
R78
249K
R63
1.0W
R105 10R
FLMP
10K
R75
820R
Val
TO92
5104
Q15
50V
R69
1/4W
18K
1/4W
C49
100N
+380V
18AWG
WHT W27
R87
1/4W
8K2
BC550C
R88
1M
C42
22U
Function
+560V
V5:A
1/4W
1/4W
R85
113K
1/4W
1/4W
1/4W
R84
113K
1/4W
Q9
5101
GND
MPSA56
Val
V3:A
-BIAS
R95 TO92
10K
Val
1/4W
16-MAR-2004
YBA200
VER# DESCRIPTION OF CHANGE
1.00p1 2nd Proto
v1.00 fixed heatsink and made value changes
V2.00 CHNGD SKRN - EYELET # SAME ON BOTH SIDE OF WIRES
CHNGD SKRN - TUBES NOW HAVE 'V' DESIGNATION
V2.00 PC#6672 - Change D20 from 20V0 to 27V0 zener (6426)
PC#6672 - Corrected colour labels on LD1 & LD2
V2.00 PC#6672 - Apply masking to mount pins of S7
V2.00 PC#6673 R120 CHANGED 470R-->470K (#4821-->4843)
.
Added extra breakaways
V3.00 PC#6680 Add header to ribbon & tabs to ease wiring and allow
for double insulated wire on STDBY and HV from power board
to preamp. Modified STDBY switching.
v3.01 Updated net classes and class to class rules for hi-voltage.
V4.00 PC#6687 Replace D5-8 IN5408->UF5408 (HER508)
.
Removed copper pours on sockets and force updated
V4.10 PC#6688 - Replaced 100R 5W R56 with
.
33R 5W #4704 wirewound
V4.11 PC#6692 - Moved VCD hole 1.5" to left and bottom left
.
ETCH GUIDE. PC#6693 - Added RTV holes to
.
all large capacitors (C32-C33, C24-C27, C52-53,
.
C38, C72, C58, C61-C62 and AC Caps C22-C23)
.
Updated z352 - new mounting hole sizes
V5.00 AH, PC#6894, 6897 AND 6937
V5.10 AH, PC#7118, REMOVE ROUTE CAUSE CUTTING R68
"STYLE_P32"
.
PC#7108, MOVE SILPAD UNDER 7915 INSTEAD 7815
V
N
Splitter
47N
C73
100V
-78V
R118 TO92
3K3
Function
RESONANCE
BC550C
Q10
5101
R74
820R
R59
5.0W
1K8
1/4W
DATE
22 Sept, 2003
9 Jan, 2004
10-MAR-2004
M
P8:A
1/4W
9
#
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
STANDBY
LD2
YEL
6399
R119
1/4W
47K
M648 PCB HISTORY
MODEL(S):-
1.0W
OPERATE
LD1
RED
6398
XF_S2
400V
TP3
1/4W
1N5262B
D21
51V0
0W5 BC550C
1.0W
1/4W
P32
P32
P32
P32
P32
P32
P32
P32
P32
N
N
N
N
500K
15A
4425
1/4W
8430
8430
8430
8430
8430
8430
8430
8430
K
K
K
K
R96
470R
1/4W
4425
4425
4423
4425
4424
4424
4425
4425
P
P
P
P
R55
470R
1/4W
8
GAIN
SCOOP
MID
BASS
TREBLE
RANGE
VOLUME
RESONANCE
F
F
F
F
TYPE
1/4W
7
P1
P2
P3
P4
P5
P6
P7
P8
R
R
R
R
C45
22N
R120
470K
1/4W
M648
YBA200
MODEL(S):REF
FUNCTION PART# KNOB
400V
1/4W
+DRIVE
+15V
1/4W
+380V
J7
10
OUTPUT
GND
*Testpoints TP1 - 4 should measure between 350 - 550mV
Product
YBA200
G I O
TO-220
I G O
TO-220
G
H
I
PCB# M648
.
6882_PC
Sheet 1 of 3
Date: Tue Jul 04, 2006
Rev: 5V10
Filename: M648-5V10sch.sch2002
J
K
L
M
N
O
P
Q
11
B
A
C
D
E
F
G
H
I
J
TO STANDBY
SWITCH
1
.
.
.
.
D8
2
3
470U
C32
350v
HER508
D5
R46
150K
10MM
2.0W
HER508
D6
2.0W
HER508
D7
+560V
M
R101
1.0W
10K0
.
R47
150K
R103
150K
10MM
10MM
R122
1.0W
10K0
R123
1.0W
10K0
20AWG
WHT
W27.
PRE1
R102
1.0W
10K0
1N5262B
D11
51V0
R49
150K
2.0W
10MM
2.0W
2.0W
R48
150K
10MM
R104
150K
10MM
R58
1/2W
8K2
20AWG
1N5262B
D12
51V0
22U
C58
350V
P
Q
2
W26.
BLK
PRE2
1N5262B
D13
51V0
3
1N5262B
D14
51V0
10U
C72
450V
470U
C33
350v
O
+267V
HER508
4
N
+380V
R56
5.0W
33R
2.0W
W38
L
1
+565V
W39
K
1N5262B
D16
51V0
22U
C61
350V
22U
C38
350V
1N5262B
D15
51V0
22U
C62
350V
4
10N
C60
250V
5
5
RED
7
RED RED
WHT
LINE
W3
BLK
PRI
W4
8
T1
GRY GRY
BLK
9
LV1
LoV
W7
3
4007
T1.5
D3
470U
C25
25V
470U
C26
25V
D2
4007
2486
R127
LoV
W9 16 VAC
FIL
W10
6872
TO220
D1
470U
C24
25V
470U
C27
25V
GND
TO220
6871
GND
IN
GND
FUSE
F1
10U
C30
63V
T1.5
100N
C29
100V
4007
R41
1/8W
220R0
FLMP
R42
1/8W
GND 220R0
250V
C63
220N
R43
18R
R121
1/4W
1R
4007
D23
V5:B
V6:B
*For 230VAC use CH1333E transformer
R45
18R
D19
V3:C
8
4007
-15V
W40
470U
C59
25V
4007
D25
TO FAN
R93
8K2
R92
8K2
-78V
9
51V0
D17
1N5262B
10
4007
Product
YBA200
PCB# M648
Sheet 2 of 3
Date: Tue Jul 04, 2006
Rev:5V10
Filename: M648-5V10sch.sch2002
IEC_RECT
B
27V0
D20
1N5254B
100V
C53
330U
160V
C52
10U
.
A
-BIAS
R94
1/4W
2K2
GND
W41
T6, 3A SloBlo
11
GND
220N
C51
250V
FLMP
4007
D24
V7:B
-15V
100N
C57
100V
7
R44
18R
V2:C
D22
V4:B
10U
C31
63V
OUT
GND
10
100N
C28
100V
MC7915CT
U2
FLMP
16AWG
GRN W22
+15V
V1:C
OUT
GND
4007
0V
W8
2 GRN
GRN 6.3 VAC
FIL
GRNGRN W11
1
IN
2486
R126
16 VAC
GRY
4 YEL
4N7
C23
250V
DPDT Switch
S15
5 GRY
YEL
PR2
9
6
LV2
22N
C22
275V
HiV
W6
100N
C56
100V
1/2W
D4
BLK
CH1333
7
U3
MC7815CT
HI1
1/2W
120 VAC
LINE
W2
6
8
1/2W
PR1
BLK
+15V
HI2
RED420 VAC
PRI
W1
1/2W
BLK
HI1
1/2W
6
*Decoupling caps placed across
U1's power rails.
GND
HiV
W5
C
D
E
F
G
H
I
J
K
L
M
N
O
P
11
Q
BlankSize - 16000x9375
VCD
ORIGIN
LONG AXIS
SEE LAYOUT DOCUMENTATION
D25
C59
470U
25V
1R
R121
X40
R96
W30.
470K
R98
X47
S3
GND LIFT
100K
X46
X45
YEL
W31
.
.
.
W40
18AWG
BLK
W32.
18AWG
-
SPKR-
4/8 Ohm
3424
SPKR+
NORMAL
OUTPUT
J7
-
.
W41
+
SOCKET UPSIDE DOWN
-
.
.
OUTPUT
6550
V7
8ohm
YEL
W15
1
Val
-
6550
V4
-
6550
V5
OPERATE
STANDBY
470R
1.0W
R21
R55
470R
1.0W
47K
R95 BC550C
10K
R119
47K
RED YEL
R24
51V0
100K
3K3
10N
C71
12AU7
V3
TAB
4007
X25
16AWG
R34
X24
100K
12AX7
V2
J8
6550
V6
820R
V7
J3
M648 5/5
YBA200
5V10
R33
R32
-
12AX7
V1
SOCKET WITH DIRECTION
D24
100K
AMP IN
100N
C15
S7
DPDT SLID
RT
V
SOCKET
4007
3436
470K
400V
22N
C47
R76
3984
TP1
D23
C19
47P
C18 47P
TL072CP
10K
R31
U1
.
Gold
4ohm
GRN
W16
22U
350V
22U
350V
RT
V
C61
249K
R35
RT
V
.
150K
2.0W
X67
R80
100N
X41
10K
11K
R29
C62
C56 C57
11K
249R
R36
X43
100N
R37 R38
249R
R28
X48
X49
2M2
R117
-20dB PAD
PRE/POST
22U
350V
W26.
R108
10K
10R
1.0W
R66
C43
ETCH
GUIDE
PRE2
100K
R39
X42
NORMAL LARGE
D22
R65
R107 D18
Function
10K
1.0W
10R
3436
22U
50V
GND
-
Q18
D21
X36
X21
X22
X20
X23
5V10
M648 3/5
YBA200
D11
R58
S4
22U
50V
GRN
LD1
6398
Q9
0V
BLK
W17
MPSA56
R68
18K
50V
22U
R118
47N
X35
R90
X37
4K7
C50 100N
82K
X28
X11
R8
X26
22K
22U
350V
51V0
S5
DI OUT C20 C21
470K
R30
MPSA56
18K
C40
50V
22U
249K
4K7
X53
X39
X18
10U
450V
X60
D12
1K8
C39
BC550C
R91
113K
113K
M648
2/5
YBA200
5V10
D13
51V0
5.0W
4007
R74
820R
3522
R12
47K
120K
C7
X33
X32
X38
X44
200K
200K
X17
R83
R82
100N
1M
1K2
R88
R86
100N
1M
8K2
R89
R87
1N
R45
X15
18R
1/2W
X16
R22
113K
15N
R10
X31
R23
X19
X12
X68
1K
150N
R20
R84
R85
V4
51V0
C58
Q17
TP2
X61
X54
X56
X57
FIL
GRN
W11
MPSA56
8K2
R71
FIL
GRN
W10
R75
820R
PLT
BLUE
W13
TP3
D14
3436
BLK
20AWG
R103
R62
PLT
BRN
W14
51V0
X63
5.0W
1K8
6399
LD2
7
1
2
R104
R60
5.0W
D15
D16
150K
2.0W
X59
W4
INSERT
R120
470K
X34
J5
8K2
1/2W
1.0W
10K0
R101
CLINCH
ORIGIN
C73 C65
Q10
7
C23
6451
250V
4N7
R56
51V0
51V0
10K0
1.0W
R102
VOLUME
C67 4N7
J7_
SHORT AXIS
W38
.
.
33R
Val
3984
R63
P7
16V
RT
100UV
-1
BLK
.
B+
RED
W12
V5
P8
+2
TP4
YEL
18AWG 18AWGW32
Val
3984
R105
10K
1.0W
10R
RESONANCE
4425
+1
R64
10R
1.0W
Q15
CR
NOR
15A
4425
-2
BLK
W1 W2
V6
249K
W19.
W31.
W27.
4004
RT
V
R122
R123
10K0
1.0W
20AWG
WHT
PRE1
U2
SPKR+
.
.
R69
18K
C41
C42
50V
50V
22U
22U
R106 Q16
10K
X55
LINE
WHT
W3
63V
10U
400V
22N
C45
X58
X66
R47
R46
C46
400V
22N
R81
220R0
R41
1K8
249K
18K
R70
220R0
R42
Val
PRI
5.0W
TP5
10K0
1.0W
C31
U3
.
CL
NOL
500K
15A
SCOOP
S1
C38
6871
MC7915CT
.
TO220
C33
W39
.
NCR
PREAMP OUT
J2
4007
150K
2.0W
150K
2.0W
RT
V
470U
350v
RT
V
MPSA56
LINE
R44
220N
C52
R78
3984
W21
RT
V
RT
V
X73
X27
NCL
C72
6872
MC7815CT
.
TO220
RT
V
RT
V
HER508
R61
W19
RT
V
.
R77
820R
-
7
XC37
Z352
RT
V
HER508
V3
400V
22N
C44
5882
470U
350v
1K8
RT
V
18R
1/2W
C12
2N2
X51
3522
C5
5865
100N
4007
D19
1/2W
8K2
R9
R16
3923
3674
22U
50V
HER508
113K
R7
51V0
8K2
1/2W
250V
220N
R49 R48
C32
C53
330U
100V
27V0
D20
W22
R92 D17
X50
X76
HER508
470K
R14
R51
22M
113K
R13
R15
1N
16AWG
GRN GND
100K
220K
SCOOP
500K
R17
120K
4425
-
C51
C26
C6
15A
P2
C29 C28
220P C48
X52
T
47R0U
V
25V
500K
Splitter
X64
R67
D3
Val
3732
R73
X72
4V7
8K2
R72
4007
RT
V
C24
RT
470U
V
25V
W27
BASS
R79
RT
V
V2
X29
X30
P4
100N C49
C54
PRE1
18AWG
WHT
4425
X62
D4
15A
10U
63V
470U
25V
D2
4007
PRE2
PREAMP OUT
500K
R18
C14
10N
C30
D1
4007
C63
4K7
3732
C55
W26
150K
2.0W
150K
2.0W
HiV
RED
W5
X14
X69
X65
4007
T1.5
R126
1K5
C8
V1
470U C27
25V
5.0W
C22
275V
T
R
V 6435
22N
RANGE
Val
R94
C25
10N
18AWG
BLK
PreAmp
1B
C11 33N
C13
22N
400V
R59
PRI
M648 1/5
YBA200
5V10
7
D7
C10
R11
62K
P6
100K
4424
V
160 U
10
D8
CR
NOR
.
R93
D6
MID
P3
X70
5882
D5
4423
750R
220N
250V
LoV
HiV GRY
RED W7
W6
CL
NOL
X74
X10
15A
NCR
2K2
R127
T1.5
NCL
C4 220N
Val
3732
C60
CR
NOR
220K
100K
R113
0V
YEL
W8
CL
S8
X13
20K
R19
1M
10N
C3
NCR
NOL
10N
100N
1M
C64
R43
R109
X6
18R
1/2W
R111
R5
TREBLE
P5
5882
C9
220N
250V
R6
3522
NCL
W9
LoV
GRY
1K54
47K
X5
100N
BC550C
C16
5906
LD3 MUTE
RED
TUNER MUTE
3921
C1
4424
X7
68K
150N
4K7
2M2
X9
R26
TIP-SW
TIP
47K
2K
R110
M648 4/5
YBA200
5V10
22U
50V
C17
W30
X75
R114 63V
4U7
10K
1B
S2
-
RING
Q3
+
SL
J4
EE
VE
3921
RING-SW
X3
GND
16AWG
10K
R97
RING-SW
X2
10N
1M
GAIN
C69
RING
100K
C66
4425
R112
R25
R27
C70
TIP
100N
TIP-SW
FUNCTION
SL
J6
EE
VE
R40
C35
6N8
500K
15A
R50
470K
R2
X1
47K
680P C68
C2
R3
X8
47K
FUNCTION
P1
10P
1M
R4
C34
6N8
113K
R1
TIP
X4
3921
RING-SW
RING
GRN
ETCH
GUIDE
TIP-SW
FUNCTION
SL
J1
EE
VE
Pcb Mech M648 5V10
Top Assy M648 5V10
SEE LAYOUT DIAGRAM
M648 PCB HISTORY
MODEL(S):#
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
22 Sept, 2003
9 Jan, 2004
10-MAR-2004
.
16-MAR-2004
.
22-MAR-2004
30-MAR-2004
.
19-APR-2004
.
.
4 May, 2004
25-MAY-2004
.
07-JUN-2004
.
10-JUN-2004
.
.
.
20-OCT-2004
27-OCT-2005
23-JUN-2006
.
D
YBA200
VER# DESCRIPTION OF CHANGE
1.00p1 2nd Proto
v1.00 fixed heatsink and made value changes
V2.00 CHNGD SKRN - EYELET # SAME ON BOTH SIDE OF WIRES
.
CHNGD SKRN - TUBES NOW HAVE 'V' DESIGNATION
V2.00 PC#6672 - Change D20 from 20V0 to 27V0 zener (6426)
.
PC#6672 - Corrected colour labels on LD1 & LD2
V2.00 PC#6672 - Apply masking to mount pins of S7
V2.00 PC#6673 R120 CHANGED 470R-->470K (#4821-->4843)
.
Added extra breakaways
V3.00 PC#6680 Add header to ribbon & tabs to ease wiring and allow
.
for double insulated wire on STDBY and HV from power board
.
to preamp. Modified STDBY switching.
v3.01 Updated net classes and class to class rules for hi-voltage.
V4.00 PC#6687 Replace D5-8 IN5408->UF5408 (HER508)
.
Removed copper pours on sockets and force updated
V4.10 PC#6688 - Replaced 100R 5W R56 with
33R 5W #4704 wirewound
.
V4.11 PC#6692 - Moved VCD hole 1.5" to left and bottom left
.
ETCH GUIDE. PC#6693 - Added RTV holes to
.
all large capacitors (C32-C33, C24-C27, C52-53,
.
C38, C72, C58, C61-C62 and AC Caps C22-C23)
.
Updated z352 - new mounting hole sizes
V5.00 AH, PC#6894, 6897 AND 6937
V5.10 AH, PC#7118, REMOVE ROUTE CAUSE CUTTING R68
.
PC#7108, MOVE SILPAD UNDER 7915 INSTEAD 7815
V
N
M648 DRILL HISTORY
MODEL(S):#
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
25-FEB-04
30-MAR-2004
20-APR-2004
.
5 May, 2004
.
25-MAY-2004
10-JUN-2004
27-OCT-2005
D
D
D
D
YBA200
VER# DESCRIPTION OF CHANGE
V01
V02
Extra breakaways added
V03
C31 moved, some eyelets chg. to tabs, header added to W19
.
Added copper pours to octal socket pads.
V3.01 Update octal sockets to ensure routed hole is sectioned.
.
Added route slots to provide high-voltage clearance.
V04
Sockets now have slots
V06
PC#6692 AND PC#6693 SEE PCB HISTORY BOX
V07
PC#6894,6897 AND 6937 SEE PCB HISTORY TABLE
V
N
V
N
V
N
V
N
M648 PENDING CHANGES
MODEL(S):#
1
2
3
4
5
6
PC#
PC
PC
PC
PC
PC
PC
M648
YBA200
MODEL(S):REF
FUNCTION PART# KNOB
P1
P2
P3
P4
P5
P6
P7
P8
R
R
R
R
GAIN
SCOOP
MID
BASS
TREBLE
RANGE
VOLUME
RESONANCE
F
F
F
F
4425
4425
4423
4425
4424
4424
4425
4425
P
P
P
P
TYPE
P32
P32
P32
P32
P32
P32
P32
P32
N
N
N
N
Z352
PRODUCTION NOTES
3796 on this
1. BEND THE SUPPORT LEADS ON THE FOUR
device only.
POWER TUBE SOCKETS AFTER INSERTION.
2. USE SOLDER JIG FOR WAVESOLDERING.
3. WHEN REQUIRED, A #6956 SPEAKON WILL FITIN THE SPACE OF J7.
4. ENSURE R56 IS #4704 WIREWOUND.
5. MOVE SILPAD TO BE UNDER #6871 INSTEAD #6872
78XX
79XX
YBA200
PENDING CHANGE
X
X
X
X
X
X
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
8430
8430
8430
8430
8430
8430
8430
8430
K
K
K
K
BC550C
MPSA56
G2
4
G I O
TO-220
C B E
TO-92
EBC
TO-92
G1
P 3
6
NC
H 2
7
H
2G 2
NC
8
K
G3
6550WE
H
H
2K 3
1
I G O
TO-220
5
2P
4
5
1P
6
7
8
1
9
12AX7A
HT
1G
1K
"STYLE_P32"
2 of 8701
2 of 3850
2 of 8832
- to hold z352 in place
PCB
2 of 8741
GRN
YEL
BLK
NEUTRAL
LINE
RED
GRN
BRN
BLK
Q7
Q4
BLUE
Q5
Q6
GREEN
RED
R 60
R 56
CH1333
CH1333M
CH1333E
C 33
C 32
R E D--SW
W26
W27
BLACK
YBA 200 NA AC WIRING
YBA 200 CE -SAME AS N.A
RED
YEL
ORN
WHITE
From Pre. Amp to Pwr
Double Ins. Wires
DBL/INS
WIRES